Submission #1064486

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
1064486	2024-08-18T13:16:40 Z	Charizard2021	Gondola (IOI14_gondola)	C++17	Compilation error	0 ms	0 KB

gondola

#include "gondola.h"
#include<bits/stdc++.h>
using namespace std;
int valid(int n, int inputSeq[]){
    set<int> s;
    bool works = true;
    int idx = 0;
    for(int i = 0; i < n; i++){
        s.insert(inputSeq[i]);
        if(inputSeq[i] <= n){
            idx = i;
            works = false;
        }
    }
    if((int)s.size() != n){
        return 0;
    }
    if(works){
        return 1;
    }
    int a[n];
    int val = inputSeq[idx];
    for(int i = idx; i < n; i++){
        a[i] = val++;
        val %= n;
        if(val == 0) val = n;
    }
    for(int i = 0; i < idx; i++){
        a[i] = val++;
        val %= n;
        if(val == 0) val = n;
    }
    bool works2 = true;
    for(int i = 0; i < n; i++){
        if(inputSeq[i] <= n){
            if(inputSeq[i] != a[i]){
                works2 = false;
            }
        }
    }
    if(works2){
        return 1;
    }
    return 0;
}

//----------------------

int replacement(int n, int gondolaSeq[], int replacementSeq[]){
    int maxVal = 0;
    int minVal = INT_MAX;
    for(int x = 0; x < n; x++){
        maxVal = max(maxVal, gondolaSeq[x]);
        minVal = min(minVal, gondolaSeq[x]);
    }
    if(maxVal <= n){
        return 0;
    }
    if(minVal > n){
        return 0;
    }
    int x[maxVal + 1];
    for(int a = n + 1; a <= maxVal; a++){
        x[a] = 0;
    }
    int idx = 0;
    for(int i = 0; i < n; i++){
        if(gondolaSeq[i] <= n){
            idx = i;
        }
    }
    int a[n];
    int val = gondolaSeq[idx];
    for(int i = idx; i < n; i++){
        a[i] = val++;
        val %= n;
        if(val == 0) val = n;
    }
    for(int i = 0; i < idx; i++){
        a[i] = val++;
        val %= n;
        if(val == 0) val = n;
    }
    for(int i = 0; i < n; i++){
        if(gondolaSeq[i] > n){
            x[gondolaSeq[i]] = a[i];
        }
    }
    for(int i = maxVal; i >= n + 1; i--){
        if(x[i] != 0){
            x[i] = x[i + 1];
        }
    }
    map<int, vector<int> > mp;
    for(int i = n + 1; i <= maxVal; i++){
        mp[x[i]].push_back(i);
    }
    int val = 0;
    int idx = 0;
    for(auto it : mp){
        val += it.second.size();
        replacementSeq[idx++] = it.first;
        for(int c : it.second){
            if(c == it.second.back()){
                break;
            }
            replacementSeq[idx++] = c;
        }
    }
    return val;
}

//----------------------

int countReplacement(int n, int inputSeq[]){
    return -3;
}

Compilation message

gondola.cpp: In function 'int replacement(int, int*, int*)':
gondola.cpp:98:9: error: redeclaration of 'int val'
   98 |     int val = 0;
      |         ^~~
gondola.cpp:73:9: note: 'int val' previously declared here
   73 |     int val = gondolaSeq[idx];
      |         ^~~
gondola.cpp:99:9: error: redeclaration of 'int idx'
   99 |     int idx = 0;
      |         ^~~
gondola.cpp:66:9: note: 'int idx' previously declared here
   66 |     int idx = 0;
      |         ^~~